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authorIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-21 14:33:31 +0000
committerIOhannes m zmölnig <zmoelnig@users.sourceforge.net>2005-03-21 14:33:31 +0000
commit10b474fba485e9a93157c7fa534bb66e7bcc6fde (patch)
tree73e9e02738ea62179a1722b37ef49a9e91cfcbad /src/mtx_mean.c
This commit was generated by cvs2svn to compensate for changes in r2637,svn2git-root
which included commits to RCS files with non-trunk default branches. svn path=/trunk/externals/iem/iemmatrix/; revision=2638
Diffstat (limited to 'src/mtx_mean.c')
-rw-r--r--src/mtx_mean.c61
1 files changed, 61 insertions, 0 deletions
diff --git a/src/mtx_mean.c b/src/mtx_mean.c
new file mode 100644
index 0000000..bb0d870
--- /dev/null
+++ b/src/mtx_mean.c
@@ -0,0 +1,61 @@
+/*
+ * iemmatrix
+ *
+ * objects for manipulating simple matrices
+ * mostly refering to matlab/octave matrix functions
+ *
+ * (c) IOhannes m zmlnig, forum::fr::umlute
+ *
+ * IEM, Graz
+ *
+ * this code is published under the LGPL
+ *
+ */
+#include "iemmatrix.h"
+
+
+/* mtx_mean */
+static t_class *mtx_mean_class;
+
+static void mtx_mean_matrix(t_matrix *x, t_symbol *s, int argc, t_atom *argv)
+{
+ int row=atom_getfloat(argv++);
+ int col=atom_getfloat(argv++);
+ t_atom *ip, *op;
+ int c=col, r;
+ t_float sum;
+ t_float factor=1./row;
+ adjustsize(x, 1, col);
+ op=x->atombuffer;
+
+ while(c--){
+ sum=0;
+ ip=argv+col-c-1;
+ r=row;
+ while(r--)sum+=atom_getfloat(ip+col*r);
+ SETFLOAT(op, sum*factor);
+ op++;
+ }
+ outlet_list(x->x_obj.ob_outlet, gensym("row"), col, x->atombuffer);
+}
+
+static void *mtx_mean_new(void)
+{
+ t_matrix *x = (t_matrix *)pd_new(mtx_mean_class);
+ outlet_new(&x->x_obj, 0);
+ x->col=x->row=0;
+ x->atombuffer=0;
+ return (x);
+}
+void mtx_mean_setup(void)
+{
+ mtx_mean_class = class_new(gensym("mtx_mean"), (t_newmethod)mtx_mean_new,
+ (t_method)matrix_free, sizeof(t_matrix), 0, 0, 0);
+ class_addmethod(mtx_mean_class, (t_method)mtx_mean_matrix, gensym("matrix"), A_GIMME, 0);
+ class_sethelpsymbol(mtx_mean_class, gensym("iemmatrix/mtx_mean"));
+}
+
+void iemtx_mean_setup(void)
+{
+ mtx_mean_setup();
+}